Patents by Inventor Shi-Jia Pei

Shi-Jia Pei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Image correction method and image projection apparatus using the same
    Patent number: 9462245
    Abstract: A method for image correction and image projection apparatus using the same are provided, where the image projection apparatus scans a projection light beam on a projection plane to form an image. The image correction method includes the following steps. A plurality of projection points of the projection light beam on the projection plane are sampled to define a projection coordinate system. An image projection area is defined on the projection coordinate system. The projection light beam is moved to scan on the projection plane and projected to the projection points sequentially. Whether the projection point is located in the image projection area is determined. When the projection point is located in the image projection area, a corrected image information is provided to the projection point.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 4, 2016
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Shi-Jia Pei, Wen-Lung Lin, De-Jian Ou, Fu-Ji Tsai
  • PROJECTION DEVICE AND CONTROL METHOD THEREOF
    Publication number: 20150256802
    Abstract: A control method of a projection device is disclosed. The control method includes following steps: entering at least one projection mode; detecting at least one motion trace of the projection device; adjusting at least one swing angle of a scan unit of the projection device according to at least one motion trace to adjust a projection scope that the projection device projects on a projection surface.
    Type: Application
    Filed: February 3, 2015
    Publication date: September 10, 2015
    Applicant: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Ju-Hung TSOU, Shi-Jia PEI, Chang-Feng LEE
  • IMAGE CORRECTION METHOD AND IMAGE PROJECTION APPARATUS USING THE SAME
    Publication number: 20150208048
    Abstract: A method for image correction and image projection apparatus using the same are provided, where the image projection apparatus scans a projection light beam on a projection plane to form an image. The image correction method includes the following steps. A plurality of projection points of the projection light beam on the projection plane are sampled to define a projection coordinate system. An image projection area is defined on the projection coordinate system. The projection light beam is moved to scan on the projection plane and projected to the projection points sequentially. Whether the projection point is located in the image projection area is determined. When the projection point is located in the image projection area, a corrected image information is provided to the projection point.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 23, 2015
    Applicant: LITE-ON IT CORPORATION
    Inventors: Shi-Jia Pei, Wen-Lung Lin, De-Jian Ou, Fu-Ji Tsai